发送消息时，我可以在我的控制台中看到:SentmailtoYoushouldaddmethod:mail_emailinyourMessageablemodel(2093ms)Date:Wed,07Nov201214:08:50+0100From:mail@myemail.comto:Youshouldaddmethod:mail_emailinyourMessageablemodel邮箱gem的初始化程序:Mailboxer.setupdo|config|#ConfiguresifyouapplicationsusesornotheemailsendingforNotificatio
试图解决这个问题，classPersondefinitialize(name)@name=nameenddefgreet(other_name)puts"Hi#{other_name},mynameis#{name}"endendinitialize("ak")greet("aks")但我收到如下错误:ArgumentError:wrongnumberofargumentscalling`initialize`(1for0)我不明白这里问的是什么，如果它只是参数那么为什么错误就像(1对0)。有人可以帮我理解这个问题。 最佳答案 看这
我尝试比较我的Ruby应用程序中的标志。我有这段代码:ifself.flag&~flag==self.flagreturnfalse但是它不会运行。我已将问题范围缩小到:irb(main):020:0>my_user.flag=>1irb(main):021:0>flag=>128irb(main):022:0>my_user.flag.class=>Fixnumirb(main):023:0>flag.class=>Fixnumirb(main):024:0>my_user.flag&~flagTypeError:wrongargumenttypeFixnum(expectedPro
Beginningin2020,Web3hasevolvedfromahazynotiontoahotlydebatedsubject,coupledwithanotherterm,metaverse,in2021.OncesignificantplayersinthegameofWeb2,existingtechgiantshavebeenknownrecentlytoinvestconsiderablecapitalin"thenextgenerationoftheInternet."Inaddition,thelureofNFTseemstohaveextendedoutsidethet
Beginningin2020,Web3hasevolvedfromahazynotiontoahotlydebatedsubject,coupledwithanotherterm,metaverse,in2021.OncesignificantplayersinthegameofWeb2,existingtechgiantshavebeenknownrecentlytoinvestconsiderablecapitalin"thenextgenerationoftheInternet."Inaddition,thelureofNFTseemstohaveextendedoutsidethet
Howtogethibernatetoprintoutwhatswrongwithanamedquery?在我的Spring/Hibernate/JPA应用程序中，我使用了很多命名查询，当我在其中一个查询中出现拼写错误时，会在我的应用程序启动日志文件中看到类似于下面的错误。12345Causedby:org.hibernate.HibernateException:Errorsinnamedqueries:FindAllCompanyFileTypes atorg.hibernate.impl.SessionFactoryImpl.init>(SessionFactoryImpl.java:
Howtogethibernatetoprintoutwhatswrongwithanamedquery?在我的Spring/Hibernate/JPA应用程序中，我使用了很多命名查询，当我在其中一个查询中出现拼写错误时，会在我的应用程序启动日志文件中看到类似于下面的错误。12345Causedby:org.hibernate.HibernateException:Errorsinnamedqueries:FindAllCompanyFileTypes atorg.hibernate.impl.SessionFactoryImpl.init>(SessionFactoryImpl.java:
